Passenger numbers ended up down 78% for the full year following a collapse in demand, while the airport was forced to cut staffing levels by more than 40% to balance the books.
Staffing cuts contributed to a £140 million overall reduction in operating costs, which also saw the airport consolidate all air and passenger traffic into one terminal.
Gatwick was also able to reduce planned capital expenditure by deferring more than £380 million in investment originally planned for 2020 and 2021.
